Gradual decoding refresh with temporal scalability support in video coding
AssigneeQUALCOMM Incorporated
InventorsYe-Kui Wang, Adarsh Krishnan Ramasubramonian
Life of this patent
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Abstract
An example method of decoding video data includes receiving, in a message associated with a picture, information indicating a refreshed region of the picture, determining whether the picture comprises a last picture in a gradual decoder refresh (GDR) set, determining whether the picture comprises a recovery point picture, and responsive to determining that the picture comprises the last picture in the GDR set and the recovery point picture, determining that the message indicates that the entire picture belongs to the refreshed region of the picture.
Claims20
A method of decoding video data, the method comprising:
- receiving from an encoded video bitstream a message associated with a picture, the message comprising information indicating a refreshed region of the picture;
- determining whether the picture comprises a last picture in a gradual decoder refresh (GDR) set;
- determining whether the picture comprises a recovery point picture;
- responsive to determining that the picture comprises the last picture in the GDR set and the recovery point picture, determining that the message indicates that the entire picture belongs to the refreshed region of the picture;
- and
- decoding the picture based on the determination that the message indicates that the entire picture belongs the refreshed region of the picture.
A device for decoding video data, the device comprising:
- a memory configured to store encoded video data;
- and
- a video coder configured to:
- receive from an encoded video bitstream a message associated with a picture of the encoded video data, the message comprising information indicating a refreshed region of the picture;
- determine whether the picture comprises a last picture in a gradual decoder refresh (GDR) set;
- determine whether the picture comprises a recovery point picture;
- responsive to the determination that the picture comprises the last picture in the GDR set and the recovery point picture, determine that the message indicates that the entire picture belongs to the refreshed region of the picture;
- and
- decode the picture based on the determination that the message indicates that the entire picture belongs the refreshed region of the picture.
A computer-readable storage medium having stored thereon instructions that, when executed, cause a processor of a computing device to:
- receive from an encoded video bitstream a message associated with a picture, the message comprising information indicating a refreshed region of the picture;
- determine whether the picture comprises a last picture in a gradual decoder refresh (GDR) set;
- determine whether the picture comprises a recovery point picture;
- responsive to the determination that the picture comprises the last picture in the GDR set and the recovery point picture, determine that the message indicates that the entire picture belongs to the refreshed region of the picture;
- and
- decode the picture based on the determination that the message indicates that the entire picture belongs the refreshed region of the picture.
A device for decoding video data, the device comprising:
- means for receiving from an encoded video bitstream a message associated with a picture, the message comprising information indicating a refreshed region of the picture;
- means for determining whether the picture comprises a last picture in a gradual decoder refresh (GDR) set;
- means for determining whether the picture comprises a recovery point picture;
- means for, responsive to determining that the picture comprises the last picture in the GDR set and the recovery point picture, determining that the message indicates that the entire picture belongs to the refreshed region of the picture;
- and
- means for decoding the picture based on the determination that the message indicates that the entire picture belongs the refreshed region of the picture.
Dependencies are inferred from the claim text.